Depthof field is frequently used in photography and cinematography to direct the viewer's attention within the scene, and to give a better sense of depth within a scene. In this chapter, I refer to the area beyond this focal range as the background, the area in front of this range as the foreground, and the area in focus as the midground.

Apa Itu Depth of Field Apa Itu Depth of Field- Bagi seseorang yang sudah lama bergelut di dunia fotografi mungkin sudah tidak asing lagi dengan istilah depth of field. Ya, depth of field atau yang biasa disebut dengan DoF merupakan sebuah ukuran seberapa luas area ketajaman yang terlihat pada sebuah foto. Yang mana jarak fokus pada sebuah foto cukup bervariasi. Nah, untuk mengetahui lebih jelasnya terkait apa itu depth of field, apa saja faktor yang dapat mempengaruhi dof serta kegunaannya, simak penjelasan berikut ini. Pasalnya dalam dunia fotografi penerapan Depth of Field sangatlah penting. Apa Itu Depth of Field DofFaktor Yang Dapat Mempengaruhi Dof1. Aperture2. Panjang Fokus atau Focal Leght3. Jarak Kamera dengan Objek Foto4. Ukuran SensorFungsi Dari Depth of FieldTips Mengoptimalkan Depth of Field Apa Itu Depth of Field Dof Sebelum membahas lebih jauh terkait depth of field, hal penting yang harus diketahui terlebih dahulu yaitu pengertiannya. Secara sederhana DoF atau depth of field merupakan ukuran luas area yang terlihat lebih tajam atau fokus pada sebuah foto. Yang mana setiap foto yang dihasilkan mempunyai area fokus yang cukup bervariasi. Misalnya saja pada foto pemandangan yang pada umumnya mempunyai area fokus yang terlihat merata. Dengan kata lain, hampir semua bagian pada foto pemandangan terlihat lebih tajam dan tidak ada blur. Berbeda dengan foto lainnya yang terfokus pada satu benda, biasanya bagian lainnya akan terlihat blur. Yang mana sebuah foto bisa dikatakan mempunyai DoF yang luas jika objek foto mempunyai ketajaman yang cukup merata. Sebaliknya, sebuah foto mempunyai DoF yang sempit jika hanya bagian-bagian tertentu terlihat blur dan bagian lainnya tajam. Faktor Yang Dapat Mempengaruhi Dof Faktor Yang Dapat Mempengaruhi Dof Ada 4 faktor yang harus diketahui karena dapat mempengaruhi DoF sebuah foto. Nah, untuk menghasilkan foto DoF yang sesuai dengan keinginan, bisa menerapkan salah satu faktor atau mengkombinasikan semuanya. Nah, sebagaimana berikut ini beberapa faktor tersebut. 1. Aperture Aperture memiliki peranan yang sangat penting untuk menciptakan DoF pada sebuah foto. DoF yang sempit dihasilkan jika angka aperture kecil atau bukaan lensa angka besar. Sedangkan DoF yang lebar dihasilkan dari angka aperture bukaan besar atau bukaan lensa kecil. Untuk mengetahui lebih jelasnya terkait aperture, Anda bisa mencari banyak informasi melalui internet ataupun belajar langsung pada seorang fotografer. 2. Panjang Fokus atau Focal Leght Panjang fokus lensa atau focal length merupakan menggunakan lensa yang mempunyai kemampuan untuk memperbesar objek foto yang jaraknya jauh. Yang mana DoF akan semakin sempit jika Focal Leght semakin panjang. Sedangkan DoF yang dihasilkan akan semakin luas jika Focal Leght semakin panjang. Yang dimaksudkan DoF kecil, Focal Leght 105 mm dan Focal Leght 18 mm menghasilkan DoF lebihs sempit. 3. Jarak Kamera dengan Objek Foto Jarak antara kamera dengan objek semakin dekat, maka DoF yang dihasilkan akan semakin sempit. Sebaliknya DoF akan semakin luas jika jarak kamera dengan objek jauh. 4. Ukuran Sensor Seperti yang telah dijelaskan sebelumnya terkait apa itu Depth of Field, sehingga DoF yang dihasilkan akan lebih bagus jika menggunakan sensor kamera yang lebih besar. Pasalnya setiap kamera mempunyai ukuran sensor yang berbeda. Semakin besar sensor kamera maka semakin banyak juga keunggulan yang dimiliki. Adapun salah satu keunggulannya dapat menajamkan fokus foto. Baca Juga Pengertian Segitiga Exposure Fungsi Dari Depth of Field Fungsi Dari Depth of Field Depth of field yang sempit dikarenakan bukaan aperture lebar f/ Nah, hal tersebut bisa membuat area di depan dan di belakang fokus point’ akan telrihat lebih sempit. Justru hal yang seperti inilah bisa menyebabkan objek yang berada di belakang serta di depan fokus menjadi out of fokus. DoF yang sempit biasanya digunakan untuk mengisolasi subjek dari lingkungan sekitar. Sehingga hal ini dapat memberikan cukup banyak keuntungan untuk fotografi portrait, makro dan olahraga. Pasalnya mengenal teknik ini cukup menguntungkan untuk menghasilkan foto yang bagus. Sedangkan DoF yang lebar dikarenakan bukaan diafragma f/16. Sehingga hari ini dapat menghasilkan fokus pada semua area yang terdapat di latar belakang ataupun di depan. Biasanya DoF yang lebar ini sering diterapkan pada fotografi landscape dan fotografi architectural. Dengan banyaknya istilah dalam dunia fotografi, tentu tak heran jika mempelajari fotografi tidak semudah seperti yang dibayangkan. Tips Mengoptimalkan Depth of Field Tips Mengoptimalkan Depth of Field Apa itu depth of field yang telah dijelaskan sebelumnya bisa memberikan pengetian yang jelas. Namun, bagi fotografer pemula untuk mengetahui cara mengambil foto DoF memang sulit untuk dilakukan. Dalam hal ini bisa menggunakan kamera profesional agar hasilnya lebih powerfull dibandingkan dengan menggunakan kamera smartphone yang sebenarnya masih banyak sekali kekurangannya. Apalagi saat ini untuk menghasilkan sebuah foto yang bagus terdapat teknik depth of field yang sempit. Jika menggunakan kamera smartphone masih banyak sekali keterbatasan, sehingga anda akan kesulitan untuk mendapatkan foto dengan teknik DoF. Namun, bukan berarti menggunakan Smartphone tidak bisa mengoptimalkan Depth of Field. Yang mana berikut ini beberapa tips yang bisa anda terapkan dengan menggunakan kamera smartphone. 1. Pastikan jika anda mempunyai smartphone yang mempunyai kualitas kamera bagus. Hal ini bertujuan agar untuk memudahkan Depth of Field pada foto. Adapun kualitas kamera yang sangat disarankan untuk digunakan harus mempunyai resolusi yang tinggi. Apalagi saat ini banyak sekali smartphone murah tetapi kualitas kameranya cukup bagus. 2. Langkah selanjutnya pastikan jarak kamera dengan objek tidak terlalu jauh. Sebaliknya jika jarak antara kamera dengan objek jauh, maka hasil Depth of Field akan semakin sempit. Mungkin jika biasanya kebanyakan orang akan melakukan zooming jika jarak objek dari kamera cukup jauh. Namun, foto yang dihasilkan dari zooming tidak bagus dan bisa pecah-pecah. 3. Untuk menghasilkan sebuah foto yang bagus dengan teknik depth of field yang maksimal, pastikan jika mendapatkan pencahayaan yang cukup. Pasalnya sebuah foto yang kekurangan pencahayaan tidak terlihat jelas dan buram. 4. Panjang fokus atau Focal Leght merupakan menggunakan lensa yang mempunyai kemampuan untuk memperbesar objek foto yang jaraknya jauh. Yang mana DoF akan semakin sempit jika Focal Leght semakin panjang. Sedangkan DoF yang dihasilkan akan semakin luas jika Focal Leght semakin panjang. Yang dimaksudkan DoF kecil, Focal Leght 105 mm dan Focal Leght 18 mm menghasilkan DoF lebih sempit. Anda bisa menerapkan focal Leght ini sesuai dengan kebutuhan. 5. Untuk mengatur objek Yang bergerak dan tetap menghasilkan kedalaman ruang yang tepat, Anda bisa mempertimbangkan untuk menggunakan pengaturan shutter yang cepat. Hal ini sangatlah menguntungkan karena dapat mengambil gambar lebih cepat dengan manual focus. Mengetahui apa itu depth of field serta tips-tipsnya diharapkan dapat memudahkan anda untuk menghasilkan foto yang bagus. Apalagi bagi Anda yang menggunakan kamera smartphone, untuk menghasilkan foto Depth of Field cukup sulit dan membutuhkan usaha lebih dibandingkan jika menggunakan kamera profesional. Visited 203 times, 1 visits today

How to use the DoF TableThis depth of field chart is the fastest way to have your DoF calculations done. Also, it comes in very handy to visualize how depth of field changes with aperture and subject distance for the selected camera and focal introduce your camera, focal length, subject distance focus distance and aperture to calculate the depth of field valuesHyperfocal distance The first row of the table gives you the hyperfocal distance, which is the closest distance at which a lens can be focused while keeping objects at infinity acceptably sharp. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp. It is typically used to maximize depth of field in night photography and landscape photography. Notice that hyperfocal distance doesn’t depend on subject depth of field DOF The distance between the farthest and nearest objects in a scene that appear acceptably sharp in an image. This can also be identified as the zone of acceptable sharpness in front of and behind the plane of focus where the lens is focused.DOF near limit The distance between the camera and the first element that is considered to be acceptably far limit The distance between the camera and the farthest element that is considered to be acceptably depth of fieldGetting the control over depth of field is not easy. You'll need to learn the concept and practice a lot. We've put together everything we know about depht of field in the following articleDepth of Field The Definitive GuideI'm sure this article will help you learn how to shoot deep depth of field...... and also how to shoot shallow depth of field. Get the control!DoF Table in PhotoPills appThis depth of field chart is also available in PhotoPills app, extended with an augmented reality view to help you visualize where to focus. Note given the sensor size, the circle of confusion is calculated assuming a print size of 8''×10'' 20cm×25cm, a viewing distance of 10" 25cm and the manufacturers standard visual acuity. Finally, If you're interested in improving your photography, check our detailed photography guides onMilky Way PhotographyMoon PhotographyAstronomical Events PhotographyStar Trails PhotographyMeteor Showers PhotographyLens Filters and Long Exposure PhotographyDrone PhotographySolar Eclipses PhotographyLunar Eclipses PhotographyFull Moon Silhouettes VideosHow to find sunrises and to find moonrises and also check these fundamental photography guidesNatural Light Golden Hour, Blue Hour and TwilightsExposureDepth of FieldHow to embed the DoF Table on your websiteTake the power of PhotoPills’ Depth of Field DOF Table with you. Just copy the following lines and paste them within the code of your website, right in the place where you want to embed itThe code will run asynchronously, without penalizing the loading time of your website. Comments

Depth of field is one of the fundamental aspects that every photographer should understand as it has such a large bearing on your images. Depth of field determines how much of your image is sharp, giving you control — whether for creative or practical reasons — over which elements are in focus. Do you want to ensure that all of your photograph is crisp, from the foreground to the background, to ensure that there are no blurry parts that distract the viewer? Or do you want to make your image feel more cinematic, isolating your subject by making it stand out against a blurry background? This guide will help you to understand how to achieve both of these results, but more importantly, give you a solid foundation for how to use depth of field in every aspect of your photography. All of the common questions about depth of field asked by photographers will be addressed and although this can be a highly complex subject, we’ll aim to make it as digestible as possible. So grab a copy of this f-stop chart, find out what a camera f-Stop is, and follow along to improve your photography by mastering DOF. What is Depth of Field in Photography?3 Shallow Depth of Field Examples3 Deep Depth of Field ExamplesHow Do You Calculate Depth of Field?The Distance Between You and Your SubjectThe Size of your ApertureThe Focal Length of your LensSensor SizeDoing the MathDepth of Field CalculatorDepth of Field ChartDepth of Field FAQsUnderstanding Depth of Field Final Words What is Depth of Field in Photography? In photography, the term depth of field describes the region of a photograph that is in focus. “In focus” is a relative term and given how easily how parts of an image can slide from being sharp to being blurry, what you might class as being “in focus” might vary according to how you are viewing an image — how big it is being displayed, and how close you are to it. Because of this, the depth of field can be thought of as being a range of acceptable focus. If you imagine yourself focusing on your subject. Everything that is the same distance away from your lens as your subject is now on the same focal plane. In addition to this, there will be a region in front of and behind the subject that is acceptably sharp. The full extent of this range is your depth of field. As will be discussed below, this depth of field can vary according to a number of variables such as how close you are to your subject, the size of your aperture, the focal length of the lens that you are using, and the size of the sensor in the camera which you are shooting on although these last two quickly get complicated!. Photographers are often trying to achieve one of two extremes a shallow or narrow depth of field, or a deep or wide depth of field. A shallow depth of field shallow DOF’ produces images where there is very little in focus other than the subject. Anything in front or behind the subject quickly becomes blurry. A shallow depth of field can be a way of creating images with a cinematic feel where a sharp subject is separated from a blurry background. This can help to direct a viewer’s attention and prevent other parts of the scene from being distracting. At the other extreme is a deep depth of field where the photographer maximises the region that is in focus, both in front of and behind the subject. Everything is sharp, whether it is just in front of the lens or on the horizon. A deep depth of field can be useful where you have a number of subjects that are all different distances from the camera and each of them needs to be in focus. This avoids making parts of the image out of focus which might undermine the quality of the photo as a whole. See also When to Use a Small Aperture in Photography 3 Shallow Depth of Field Examples Sony a7 III + Sigma 65mm f/2 DG DN 1/640, f/2, ISO 100 A shallow depth of field was used to separate the subject from a busy background, blurring the trees behind the model so that they don’t take attention away from the subject’s face. The effect gives the image a three-dimensional feel. Sony a7 III + 7artisans 35mm f/ 1/800, f/ ISO 100 Photographing forests can be very chaotic and using a shallow depth of field allows the viewer to see the detail in the nearest tree without the rest of the image competing for the viewer’s attention by being equally sharp. It also creates a sense of depth and helps to emphasise the slight haze of the morning, both of which add a sense of mystery. Sony a7 III + 7artisans 35mm f/ 1/250, f/ ISO 4000 This photograph of a rock climber tackling an overhanging boulder uses an incredibly shallow depth of field to create a loose and abstract feel. Little of the image is in focus which isn’t of great importance as this image is about capturing a moment. The wide aperture also helped to photograph movement in very dark conditions by letting as much light as possible reach the sensor. 3 Deep Depth of Field Examples Sony a7 III + Sigma 65mm f/2 DG DN 1/400, f/10, ISO 100. Although the subject of this image is the person standing on the railing, this photograph also wanted to convey the context. Using a deep depth of field brings some sharpness to the mountains in the background in an attempt to convey some of the relationship between the foreground and the background. Sony a7 III + Canon 16-35mm f/ at 24mm. 1/1000, f/ ISO 5000. There are two subjects in this scene and one is much further away from the camera than the other. A deep depth of field ensures that both are in focus. In addition, this is also an environmental portrait and the location plays a major role in this photograph. Canon 6D + 16-35mm f/ at 16mm 1/320, f/8, ISO 1000. This image wants to communicate the texture of the concrete as well as the sense of perspective. The deep depth of field ensures that the texture of the steps in the foreground is felt but keeps all of the architecture sharp and in focus. How Do You Calculate Depth of Field? There are four variables that affect the depth of field. Two of these variables have a direct impact the distance between you and your subject subject distance’, and the aperture of your lens. Technically, it’s actually the entrance pupil of the lens which is something slightly different, but let’s worry about these finer details another time! There are then two other factors that play a role in understanding depth of field focal length and sensor size. The Distance Between You and Your Subject You may have noticed that when you focus your lens on the horizon, almost everything in the frame appears sharp. Equally, if you focus on something that’s just in front of you, everything behind it goes blurry. This is because the distance between you and the subject you are focusing upon affects how much of the scene in front of you is in focus. It’s useful to use a diagram in order to understand the behaviour of light when it enters a lens. When a lens focuses on a subject, it converges light rays to a point, and it is at this point of convergence — the focal plane mentioned above — where images are sharp. As you will recall, there is a region on either side of this focal plane where the image is acceptably sharp — our range of acceptable focus — that creates our depth of field. If the subject moves closer to the lens, these beams of light have to converge more sharply in order to be in focus, reducing the region within the image that is acceptably sharp, and giving a shallower depth of field In short, the closer you are to your subject, the shallower your depth of field. The further you are from your subject, the deeper your depth of field. The Size of your Aperture The aperture is the hole in your lens that let’s light pass through, one of two factors the other being shutter speed that determines the amount of light that reaches your sensor. The bigger the hole, the more light you let through. The size of this hole is described by a number that, thanks to a mathematical formula that we don’t need to worry about right now, gets smaller when the aperture gets larger. The higher the number, the smaller the aperture. The size of the aperture has a direct impact on the size of your depth of field. The bigger the aperture the smaller the number, the shallower the depth of field. The smaller the aperture the bigger the number, the deeper your depth of field. If we use the same diagram, you can see how this works. Here is a large aperture giving a shallow depth of field And below is a smaller aperture, giving a deep depth of field If you want to get as much of your scene in focus as possible, use a small aperture high number, f/11, f/16. If you want a sharp subject against a blurry background, use a large aperture low number, eg, f/ f/ The Focal Length of your Lens Focal length is described in millimetres. The higher the number, the narrower the field of view, and the closer distant subjects appear. When it comes to separating a subject from the background, a lens with a longer focal length will give a blurrier background and it’s true that they give a shallower depth of field — but not for the reasons that many photographers think. In the example below, it’s clear that the image on the right shot on an 85mm lens at f/ has a much blurrier background than the image on the left, shot on a 35mm lens, also at f/ The lens with the longer focal length has a much shallower depth of field. You can use a Depth of Field calculator see below to understand the difference I was shooting from a distance of 1 m, and at f/ the 35mm lens has a depth of field of cm. By contrast, the 85mm lens at this distance has a depth of field of cm. That’s a huge difference. But there’s another big difference between the two photos the size of the subject. What happens if the subject is made to appear the same size in each shot? To create this comparison, I moved further back and took another photograph using the 85mm lens. From m away — the distance I need to be to make the subject the same size in both images — my depth of field is 8 cm. Suddenly, the depth of field with both the 35mm lens and the 85mm lens shooting at f/ is almost identical. As you can see this has an effect the difference in blurriness is not as pronounced. The big difference is that the longer lens brings the background closer due to distance compression, and gives the impression that the background is more blurred because it is being magnified. So longer lenses do create a shallower depth of field, but the reasons behind it are more complicated than most photographers realise! Imagine this scenario you take a portrait of a person but when you review your photograph, you realise that the 35mm lens attached to your camera isn’t giving you the background separation that you want, even at the largest possible aperture of f/ Instead, you decide to use a longer focal length so you switch to your 85mm lens and recompose. Because of the longer focal length, you need to move back in order to create the same composition. If you keep the subject the same size in your frame between the two photos, your depth of field will be pretty much identical. However, the 85mm lens will give a blurrier background — and therefore more separation — because of compression, and not because the longer focal length gives you a shallower depth of field. Sensor Size Photographers often assume that using a camera with a smaller sensor automatically means a shallower depth of field but the reality is more complicated than that. As an example, consider the difference between a full-frame and an APS-C sensor. The APS-C sensor is physically smaller than the full-frame sensor and introduces crop factor as a result. This means that a lens used on a full-frame camera will give a narrower field of view when used on an APS-C camera. As a result, if you are photographing a subject and switch from a full-frame camera to an APS-C camera, you will need to move further back in order for your subject to be the same size in your frame. As explained above, moving further away from your subject creates a deeper depth of field. Doing the Math There is a mathematical formula that combines the f-number of the lens, its focal length, the distance to the subject that gives the depth of field of a lens. This formula also includes something called the circle of confusion which is a figure given to a lens that describes how big a single point of light becomes before it is no longer acceptably sharp. Circle of confusion is a confusing topic !, but we do our best to explain it in this guide. The formula above allows us to calculate precisely the depth of field from any given focal length, distance to subject, and aperture. Notice that sensor size isn’t included in this equation. A 50mm lens is a 50mm lens regardless of whether you use it on a full-frame camera or an APS-C camera. However, on an APS-C camera, your field of view will be narrower. Depth of Field Calculator Here’s a useful way to calculate the depth of field based on your camera and the factors above. Hyperfocal distance the focusing distance that gives your photos the greatest depth of field. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance through to infinity will be acceptably sharp. Hyperfocal near limit The distance between the camera and the first element that is considered to be acceptably sharp when focusing at the hyperfocal distance. Depth of field DOF The distance between the furthest and closest points that are in acceptable focus the zone of acceptable sharpness in front of and behind the subject to which the lens is focused on. DOF near limit The distance between the camera and the first element considered to be acceptably sharp. DOF far limit The distance between the camera and the furthest element considered to be acceptably sharp. Depth of Field DOF In Front Distance between the DoF Near Limit and the focus plane. Depth of Field DOF Behind Distance between the focus plane and the DoF Far Limit. Thanks to PhotoPills for the tool and definitions. Depth of Field Chart The chart above shows the effects on depth of field that changes in lens aperture produce. As the f-number of the lens increases, the greater the depth of field. As the f-number decreases, the shallower the depth of field. Click the image to view it larger, then print it out and use it as a depth of field cheat sheet next time you’re out taking photos. Depth of Field FAQs What f-stop gives the greatest depth of field? The f-stop is used to describe the size of the aperture in your lens. The lower the number, the bigger the aperture, and the shallower the depth of field. The higher the number, the smaller the aperture, and the deeper the depth of field. Does depth of field increase performance? Lenses tend to be sharpest when they are not used at one extreme or another. Wide open with a shallow depth of field, they can lose sharpness and suffer from other aberrations. At their smallest aperture with a deep depth of field, images can be soft as a result of diffraction. What is a minimum depth of field? Minimum depth of field describes the shallowest depth of field that can be produced by a lens. This is achieved by setting the lens to its maximum aperture. How do you maximize depth of field? To maximize depth of field, decrease the size of your aperture or move further away from the subject you are focusing upon. Alternatively, without moving, switch to a lens which has a shorter wider focal length. How does distance affect depth of field? As you get closer to the subject you are focusing upon, depth of field becomes shallower and out-of-focus areas become more blurry. Which lens is best for depth of field? To achieve the shallowest depth of field, choose a lens with a large maximum aperture. A great place to start is a 50mm f/ lens as it is small, lightweight, and very affordable. If you have the money, try a 50mm f/ or even an f/ lens! What is a high depth of field? Depth of field can either be shallow narrow or deep wide. A depth of field cannot be high, but you may wish to use an aperture with a high number in order to create a deep depth of field. When would you use depth of field? You might use a deep depth of field when photographing a landscape to ensure that the image is as sharp as possible from the front of the image to the back, and no part distracts the viewer by being blurred. Alternatively, you may use a shallow depth of field when photographing a portrait in order to blur the background and direct the viewer’s attention to your subject. Does shutter speed affect depth of field? Shutter speed does not affect depth of field. However, if you are trying to create a deep depth of field by using a small aperture, you will need to reduce your shutter speed and ISO in order to ensure the correct exposure. Does ISO affect depth of field? ISO does not affect depth of field. However, making your aperture smaller to give a deeper depth of field, or larger to create a shallow depth of field will require you to change your ISO and shutter speed in order to expose correctly. Which f-stop is sharpest? Typically, the sharpest f-stops on a lens are two or three stops smaller than the largest possible aperture. For example, a lens with a maximum aperture of f/ will often be sharpest when used between f/ and f/8. Understanding Depth of Field Final Words Depth of field can be confusing at first but it’s worth gaining a good understanding as it will have a huge impact as you progress with your photography. Understanding depth of field will help you make sure the focus in your photographs is exactly where you need it, whether it’s complete sharpness from the front to the back of an image, a razor-thin depth of field that separates your subject, or something in between. The important elements to note are that getting close to your subject and using a larger aperture will give you a shallower depth of field. Using a longer lens will also create a shallower depth of field unless you also have to move away from your subject in order to accommodate it, in which case it will just give the impression of a shallower depth of field because of distance compression. It’s quite a lot to take in but if you have any questions, be sure to leave a comment below. Highly Recommended 8 Tools for Photographers Check out these 8 essential tools to help you succeed as a professional photographer. Includes limited-time discounts. Learn more here

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Pengertian DEPTH OF FIELD atau DoF dalam fotografi adalah bidang atau zona dalam sebuah foto yang memiliki ketajaman jelas. Bidang ini bisa saja terdapat di depan, sejajar atau di belakang subyek sebuah foto. Supaya lebih mudah, perhatikan foto Patung Dua Anak Bermain di bawah ini Subyek pada foto adalah patung tersebut, tetapi perhatikan bahwa area di sekitar patung tersebut, seperti rumput, dudukan patung dan beberapa hal lainnya ikut terlihat jelas. Bandingkan dengan latar belakang patung yang terlihat blur tidak jelas. Nah, area yang tajam inilah yang dikenal sebagai DEPTH OF FIELD atau DoF dalam fotografi. Dua Istilah Terkait Depth Of Field Dalam fotografi dikenal dua istilah yang berkaitan dengan DoF, yaitu Shallow Depth of Field Shallow = Dangkal. Istilah ini mengacu pada Dof yang “sempit”. Maksudnya bidang yang tajam dan jelas tidak banyak. Biasanya banyak dipergunakan untuk foto potret dengan memakai teknik bokeh. Contohnya foto di bawah ini Deep Depth of Field Deep = Dalam Istilah kedua adalah sebaliknya, yaitu Deep Depth of Field alias DoF Dalam. Bidang yang tajam dan jelas sangat luas dan bahkan menyeluruh dalam sebuah foto. Biasanya dipergunakan dalam fotografi landscape. Contoh foto Apa Yang Mempengaruhi Depth Of Field sebuah Foto? Ada tiga hal yang akan mempengaruhi DoF pada sebuah foto, yaitu Aperture Focal Length Panjang Lensa Jarak Aperture a Semakin kecil nilai aperturenya bisa dilihat dari angka di belakang huruf “f”, maka berarti DoF semakin kecil, semakin sempit. Contoh f/ berarti memiliki Dof yang lebih sempit dari f/ f/11 berarti memiliki Dof yang lebih luas dibandingkan f/ Focal Length Semakin panjang focal length lensa, maka Dof-nya akan semakin kecil. Pada lensa telezoom, seperti 18-55 mm lensa kit kamera DSLR dengan f/ maka DoF terluas f / bisa didapat ketika lensa sama pada posisi terpendek, yaitu 18 mm, sebaliknya Dof tersempit didapat pada saat lensa terulur maksimum pada 55 mm f/ Jarak antara Kamera dengan Subyek Semakin dekat jarak kamera dengan obyek, maka semakin sempit DoF yang dihasilkan. Sebaliknya semakin jauh jarak subyek dengan kamera, maka semakin luas DoF yang dihasilkan. Sebagai contoh, memakai lensa 18-55 mm, di saat Anda memotret dari jarak 1 M dari subyek pada focal length 18 mm, maka akan terlihat banyak sekali bagian yang blur dan tidak jelas. Cobalah mundur tanpa merubah setting, maka akan terlihat bahwa ruang yang tajam akan bertambah. Bahkan tanpa merubah settingan kamera. Hal ini terjadi mirip dengan jika Anda memanjangkan atau memendekkan lensa telezoom Anda. Ingat lensa telezoom sebenarnya dibuat agar fotografer tidak perlu banyak maju dan mundur, jadi fungsinya sama. Mengapa Mengetahui Depth of Field Penting? Cobalah memotret landscape dengan setting lensa atau menggunakan lensa yang menghasilkan Depth of Field yang dangkal atau sempit, seperti 50 mm f/ yang biasa dipergunakan untuk menghasilkan bokeh. Hasilnya akan sangat tidak enak dilihat. Akan banyak sekali bagian yang blur. Padahal foto landscape atau memotret pemandangan akan lebih enak dilihat ketika bagian yang jelas dan tajam sebanyak mungkin. Sebaliknya, membuat kabur atau blur sebagian bidang dalam foto potret atau macro, akan membuang bagian yang “tidak penting” atau “tidak berkaitan” dengan subyek foto dan menambah nilai artistik sebuah foto. Dengan mengetahui apa itu DEPTH OF FIELD Dof dalam fotografi, hal ini akan membuat kita tahu kapan dan harus menggunakan teknik dan settingan kamera yang seperti apa untuk menghasilkan foto yang bagus. Semoga bermanfaat! oHOpLcQ.

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